Oil pumping unit
    101.
    发明授权
    Oil pumping unit 有权
    抽油机

    公开(公告)号:US08746093B2

    公开(公告)日:2014-06-10

    申请号:US13171495

    申请日:2011-06-29

    IPC分类号: F16H21/32 F16H21/44 F04B17/00

    CPC分类号: E21B43/126

    摘要: A crank-type non-beam pumping unit, including a belt, a foundation, a crown sheave, a frame, a support rod, a belt pulley, a pin shaft, a crank, a transmission shaft, and a bracket. The bottom of the frame is disposed on the foundation, and the top of the frame is supported by the support rod. The top of the support rod is hinge connected to the frame, and the bottom of the support rod is hinge connected to the foundation. The bracket is disposed on the foundation, the transmission shaft is disposed on the bracket, and the crank is disposed on the transmission shaft. The crank rotates synchronously with the transmission shaft, and the belt pulley is disposed on one end of the crank via the pin shaft. One end of the belt bypasses the crown sheave, and is connected to a smooth sucker rod.

    摘要翻译: 曲柄式无梁泵送单元,包括皮带,基座,表头滑轮,框架,支撑杆,皮带轮,销轴,曲柄,传动轴和支架。 框架的底部设置在基座上,框架的顶部由支撑杆支撑。 支撑杆的顶部铰链连接到框架,支撑杆的底部铰链连接到基座。 支架设置在基座上,传动轴设置在支架上,曲柄设置在传动轴上。 曲柄与传动轴同步旋转,皮带轮通过销轴设置在曲柄的一端。 皮带的一端绕过表冠滑轮,并连接到平滑的吸盘上。

    POLYISOPRENE, PREPARATION METHOD THEREOF, POLYISOPRENE RUBBER COMPOUNDS AND VULCANIZATE THEREFROM
    102.
    发明申请
    POLYISOPRENE, PREPARATION METHOD THEREOF, POLYISOPRENE RUBBER COMPOUNDS AND VULCANIZATE THEREFROM 有权
    聚异戊二烯,其制备方法,聚异戊二烯橡胶化合物及其非离子表面活性剂

    公开(公告)号:US20130317176A1

    公开(公告)日:2013-11-28

    申请号:US13903573

    申请日:2013-05-28

    IPC分类号: C08F36/08 C08L7/00

    摘要: The method for preparation of polyisoprene includes conducting polymerization reaction of isoprene in a first organic solvent under the presence of rare earth catalyst I and rare earth catalyst II, to obtain polyisoprene with bimodal molecular weight distribution, wherein the polymerization reaction conditions are controlled to ensure the peak molecular weight of the high molecular weight component fraction in the polyisoprene is 1×106-2×106 and the peak molecular weight of the low molecular weight component fraction is 2×105-4×105, and the weight ratio of content of the high molecular weight component fraction to the low molecular weight component fraction is 1-25:1. The molecular weight distribution of the polyisoprene obtained with the method provided is bimodal distribution; therefore, the polyisoprene not only has the mechanical properties of polyisoprene with high molecular weight, but also has the processability of polyisoprene with low molecular weight.

    摘要翻译: 制备聚异戊二烯的方法包括在稀土催化剂I和稀土催化剂II的存在下在第一有机溶剂中进行异戊二烯的聚合反应,得到双峰分子量分布的聚异戊二烯,其中控制聚合反应条件以确保 聚异戊二烯中高分子量组分的峰分子量为1×106-2×106,低分子量组分的峰分子量为2×105-4×105, 高分子量组分与低分子量组分的比例为1-25:1。 用所提供方法得到的聚异戊二烯的分子量分布为双峰分布; 因此,聚异戊二烯不仅具有高分子量的聚异戊二烯的机械性能,而且具有低分子量的聚异戊二烯的加工性。

    Tubular cracking furnace
    103.
    发明授权
    Tubular cracking furnace 有权
    管式裂解炉

    公开(公告)号:US08585890B2

    公开(公告)日:2013-11-19

    申请号:US12593216

    申请日:2008-03-28

    IPC分类号: C10G9/14 B01J8/00

    摘要: This invention relates to a tubular cracking furnace, especially an ethylene cracking furnace, which comprises a convection section and a or dual radiant section(s), at least one heat transfer intensifying member arranged in at least one pass each radiant tube in said radiant section, said at least one heat transfer intensifying member comprises a first heat transfer intensifying member, which is arranged at a location between 10D and 25D upstream of the extreme point of said at least one pass radiant tube metal temperature, wherein D is the inner diameter of the radiant tube having heat transfer intensifying members. The present invention could achieve the best enhanced heat transfer result with given number of heat transfer intensifying member, by optimizing the locations of heat transfer intensifying members in the radiant tube.

    摘要翻译: 本发明涉及一种管状裂解炉,特别是一种乙烯裂解炉,其包括一个对流段和一个或两个辐射区,至少一个传热增强构件,其布置在至少一个通路中,每个辐射管中的每个辐射管 所述至少一个传热增强构件包括第一传热增强构件,其布置在所述至少一个通过辐射管金属温度的极限点上游的10D和25D之间的位置,其中D是 辐射管具有传热增强构件。 通过优化辐射管中的传热增强构件的位置,本发明可以通过给定数量的传热增强构件实现最佳的增强的传热结果。